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vuln-cve/data/2026/3xxx/CVE-2026-3549.json
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{
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"dataVersion": "5.2",
"cveMetadata": {
"cveId": "CVE-2026-3549",
"assignerOrgId": "50d2cd11-d01a-48ed-9441-5bfce9d63b27",
"state": "PUBLISHED",
"assignerShortName": "wolfSSL",
"dateReserved": "2026-03-04T18:44:13.820Z",
"datePublished": "2026-03-19T20:09:27.036Z",
"dateUpdated": "2026-03-24T01:38:13.951Z"
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"title": "ECH parsing heap buffer overflow",
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"cweId": "CWE-122",
"description": "CWE-122 Heap-based buffer overflow",
"type": "CWE"
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"url": "https://github.com/wolfSSL/wolfssl/pull/9817"
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"userInteraction": "NONE",
"vulnConfidentialityImpact": "LOW",
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"Safety": "NOT_DEFINED",
"Automatable": "NOT_DEFINED",
"Recovery": "NOT_DEFINED",
"valueDensity": "NOT_DEFINED",
"vulnerabilityResponseEffort": "NOT_DEFINED",
"providerUrgency": "NOT_DEFINED",
"version": "4.0",
"baseSeverity": "HIGH",
"baseScore": 8.3,
"vectorString": "CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:L/VI:L/VA:H/SC:L/SI:L/SA:L"
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"credits": [
{
"lang": "en",
"value": "Oleh Konko for independently reporting after internal wolfSSL findings and testing wolfSSL's fix",
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"timestamp": "2026-03-24T01:37:47.102762Z",
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"title": "CISA ADP Vulnrichment",
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